Ventilating apparatus



UNITED STATES PATENT OFFICE;

JOHN FERNIE, OF-II-IILADELIHIA, PENNSYLVANIA.

VENTILATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 280,594, dated July 3,1883.

Application filed February 513, 1883. (No model.)

To all whom it may concern.-

Be it known that I, JOHN FERNIE, a subject of the Queen of Great Britainand Ireland, and a resident of Philadelphia, Pennsylvania, have inventedcertain Improvements in Ventilating Apparatus, of which the following isa specification.

My invention relates to the ventilation of rooms in stores andfactories; and it consists, mainly, of the combination of a pipe orpipes for conveying fresh air under pressure, and an injector orinjectors through the nozzles of which the fresh air is forced, therebycausing such an agitation and such an admixture of fresh with the foul.air that the latter is rendered innocuous, the currents of air at thesame time contributing to the comfort of those engaged in the rooms.

In the accompanying drawings, Figures ,1 and 2 represent the injector bywhich I prefer to carry my invention into effect; Fig. 3, a plan view ofpartof a store, showing the position of air-pipes and injectors; andFig. 4, a vertical section of Fig. 3.

Referring to Figs. 1 and 2, A is a pipe, one or more of which may be ator near the ceiling of the apartment to be ventilated, the number anddisposal of the pipes depending upon the character of the room and thearrangement of the benches, desks, or counters at which the occupantsare engaged. The pipes must be in communication with a fan or otherair-compressor driven by any available motor, so that a continuoussupply of fresh air may be forced through the pipes.

The injector B consists of a short tube, I), and a nozzle, a, projectinginto the said tube, and connected thereto by a cross-piece, e, thenozzle communicating with the pipe A.

Figs. 3 and 4 represent the counters of a store; or they may be thebenches in a factoryroom or they may indicate the situation of machinesat which operatives are engaged, the line ac, Fig. 4:, representing theceiling, beneath which are three pipes, all communicating with a fan orother air-compressor, one pipe being in the present instaucearrangedabove each counter. On each pipe injectors are arranged at intervals atabout the angle shown. The forcible j et of air under pressure escapingfrom the nozzle of each injector causes air which is more or less foulair to rush through the tub I), and there is consequently such a generalagitation of air and such an admixtureof fresh air with the foul thatthe latter is rendered innocuous. At the same time currents of air aredirected in such a course as to relieve the occupants of the room fromthe discomforts due to a close atmosphere. During the winter monthsheated air may be discharged from the nozzles in place of cold air.

While the injectors may be fixed permanently to the air-pipes, I preferto make them adjustable, so that the direction of the currents of airmay be changed as circumstances may suggest. For this purpose the bentportion of each nozzle a is so fitted at yto abranch, m, secured to thepipe A, Fig. 2, that the nozzle can be turned on the said branch, thenozzle and branch being secured together by a central bolt, 01. Thenozzle can thus be adjusted to any inclination desired, and, ifrequired, a duplex j oint or universal joint may be used, so as topermit the nozzle to be adjusted in all directions.

I claim as my invention 1. The combination, in a basement or otherapartment, of a pipe or pipes, A, for conveying air under pressure, withan injector or injectors, each of which consists of a nozzle, (1 and atube, I), which is open at both ends and into which the nozzle projects,all substantially as set forth.

2. The combination of the pipeAwitha nozzle, a, adjustably connected tothe pipe, and with the tube 2), attached to the nozzle, sub stantiallyas specified.

' In testimony whereof Ihave signed my name to this specification in thepresence of two subscribing witnesses.

JOHN FERNIE.

Vitnesses:

HARRY L. ASHENFELTER, HARRY SMITH.

